[tex-k] Typo in mfbook.tex + inconsistencies in mfbook.tex vs plain.mf

[Igor Liferenko]

Hi,

In mfbook.tex (line 15019) the word is 'origen' instead of 'origin'.

There are also 3 discrepancies:

1. --------- plain.mf in uppercase ---------------
== plain.mf, line 565:
screen_cols:=500;     % by reading in a separate file after PLAIN.MF
== mfbook.tex, line 15017:
|screen_cols:=500;     % by reading in a separate file after plain.mf|

2. ------------------- lacking comments --------------
== plain.mf, lines 567-568:
def openit = openwindow currentwindow
from origin to (screen_rows,screen_cols) at (-50,300) enddef;
== mfbook.tex, lines 15019-15020:
|def |^|openit|| = openwindow currentwindow from origen    % and please correct|
| to (screen_rows,screen_cols) at (-50,300) enddef;   % "(-50,300)" too|
3. ---------------- order of showit_ vs showit ---------------
== plain.mf, lines 569-570:
def showit = openit; let showit=showit_; showit enddef; % first time only
def showit_ = display currentpicture inwindow currentwindow enddef;
== mfbook.tex, lines 15021-15022:
|def showit_ = display currentpicture inwindow currentwindow enddef;|
|def |^|showit|| = openit; let showit=showit_; showit enddef; % first time only|

Best regards,
Igor